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Operating Systems Development Job Cost Overview

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On average, 3 Operating Systems Development projects are completed every quarter on Upwork.


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Operating Systems Development Upwork freelancers typically receive a client rating of 4.67.

Last updated: October 1, 2015

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Steve Lam Hang

Senior Support Technician

Canada - Portfolio: 1

I have worked in multiple industries with different technical roles. As a result, I've gained a great deal of practical experience in these positions by helping corporate users and customers with their technical problems in a timely manner. Throughout, I have always applied a customer oriented approach to every project, request, incident or task in order to ensure a high level of customer and user satisfaction. I have benefited professionally from all these experiences and the knowledge gained, and I am certain I can share these effectively with any institution. With the ability to manage small to medium sized projects, I can provide outstanding results with the skill-set I possess. My ability to learn quickly and adapt to any environment or challenges allows me to work with confidence. If you are looking for someone to take initiative and independently take charge as a leader, then look no further. Although I have not worked directly in a managerial position, I've had leadership roles amongst my peers and I am certain that I can motivate and lead by example with my many years of experience and management qualities.

$16.67 /hr
0 hours

Diego Augusto De Faria Barros

Diego Augusto De Faria Barros

Developer & Translator

Brazil - Tests: 10

I have experience in Computer Science with emphasis in Information Systems, specially on the following topics: Design and development of systems (implementation, analysis and design), databases and information processing. I Also, do translations and proofreading of English and Portuguese texts.

98% Job Success
$16.67 /hr
515 hours

Manish Gurnaney

Manish Gurnaney

Experienced professional with 10 yrs of exp.

India - Tests: 3

• An experienced Software Engineer with 9.2 years’ experience in design and implementation of applications in domains- Browser and Internet Advertising currently employed with Culture Machine media Ltd with the designation of Senior Software Engineer. • Experience of working with Mobile phone Giants like Motorola, Samsung and LG. • Strong programing skills in C, C++ and expertise in Webkit2 and Blink. • Professional Experience in Tizen 2.0, Chrome, HTML5 Spec, HTML4.0, DOM 2 specifications, GStreamer, OpenGL, NodeJS, Ansible, AngularJS and Extended JavaScript . • Onsite experience with responsibility of design and development of Webkit Layer. • Quickly adapt the upgrading technical skills and knowledge & apply them proactively. • Good understanding of Linux core concept and have experience in IPC, Shared memory and Socket Programming.

$15.00 /hr
0 hours

Andrei Volkov

Andrei Volkov Agency Contractor

Linux specialist (Sec/Opt/Dev, C/Perl/Python/PHP/BASH)

Belarus - Tests: 5 - Portfolio: 13

Important: ------------------- Enhanced shield of your Web application with mod_security! Should be always. It is task #1 after installation ANY web application! ------------------- About Me and more: ------------------- I have over 16 years of work experience with Linux systems. This is the list of software and technologies with which I deal. This list is not full and expands day by day. I always can find right decisions if I found some problems. And I am always interested in looking for mostly economical and productive solutions. Of course, Cpanel, WHM, Webmin, Plesk .... I know how are working these web-wrappers and I support their. I can will tune and to make the checking of these wrappers. But that more important !! I can work without this))) Directly use configuration files of services and etc etc. Usually, it is better way on dedicated servers. ) TCP, IPv4 , IPv6, IPX ... - WiFi, WEP, WPA, WPA2 ... - SElinux, Apparmor, Smack, Tomoyo ... - LAMP ( Apache, Nginx, PHP, Perl, Mysql, Mongo), REDMINE ... - Cpanel, Zpanel, ISP ... - MySQL clustering and replication DNS servers ... - SENDMAIL, EXIM, POSTFIX (POSTFIXADMIN,MYSQL,DOVECOT,POLICYD) ... - HPC system: Torque, Maui, Moab for HPC clusters, Infiniband, FC interconnect, iSCSI, SCST, DRBD, OFED, OPENMPI ... - OpenLDAP ... - VPN with OpenVPN, PPTP, StrongVPN ... - Nagios, Zabbix, Ganglia, OSSEC ... - SVN, CVS, GIT ... - KVM, Xen, OpenStack, Proxmox ... - NBD, RAID, LVM ... etc etc During these years I have been in a large number of tasks related to administration of network devices, as well as with simple and complex server systems. I manage servers for the HPC tasks and for network infrastructure of Internet and Intranet - DNS,DHCP,*FTP,HTTP(S),MAIL etc etc. The main goals - the monitoring of the performance and the security. I also implement tasks of data backup and troubleshooting, support for the users. I have comprehensive work skills with systems based on Debian, Redhat, CentOS, SLES, OpenSuse. I've got more than 8 years of experience in developing the different software with use of C, Perl, Python, Bash, HTML on system and user levels. For example, very important skill in developing and the modification of RPM packages (rpmbuild, rebuild, kernels), custom kernels and etc etc. ------------------- Often: ------------------- How the standart service for VPS's and VDS's projects and dedicated servers: IDS, IPS, the control of contents of log's files, the control of load of the cpu, the memory, the hard disks; the backups of the databases and the files; install or update software, consultations. Emergency call via sms to cell phone. ------------------- STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. VERY OFFTEN: IF YOURS WP WAS HACKED 1. disable plugins 2. execute # diff -r dir1 dir2 3. repeat for plugins if you have last version of WP code: ~ 80% cases - problems: plugin low quality (look on author: from where and who is) ~ 15% cases - problems: theme low quality (look on author: from where and who is) ~ 5% 0day of WP also you need disable all shell function in php and enable suphp/suexec modes. STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. I am getting a lot questions about reliability and quality distributives/clones Ubuntu. Results on practice - Ubuntu clones - worst for server. It is truth. If you $buntu guy, I can't help you right now. I only can recommend Debian way for server. =============== 3. Nginx of course is good program. For small/middle vps. But in serious projects - apache. Nginx will be suitable for frontend. It is only practice. Always for all web application should be mod_security module. Firewall of level of web application on 7 level of OSI. Each web application/site should be under own user in environment of vps or on dedicated servers. =============== 4. By topic Wordpress. For optimisation services of OS , namely system IO(type of disks or partitions) and DB(type of engines of tables), need to use empty installation (default variants). Most problems of work WP contains in itself - customized plugins or themes. For analyze pages need begin with such services as =============== Sunday - day of rest. Or in emergency case - payment with double rate. best regards, Andrei / PS: With love from USSR. ;-)

Associated with: UPWORK.LINK

100% Job Success
$16.00 /hr
1,023 hours

Marwan D.

Marwan D.


Jordan - Tests: 7 - Portfolio: 2

Excel is my passion, my analytical personality along with a systematic way of thinking that was gained through years of study and work experience at managerial positions allows me to innovate when it comes to analysis, problem solving, creative thinking and finding solutions. My natural love of number adds to my passion to excel leading to extraordinary results, logical reasoning is one extra treat that adds power to the solutions I create. I have created several solutions harvesting the power of excel at all stage of my carrier progress that lead to increased sales, more profits and decreased expenses. I am on a continuous learning curve that I create for myself, learning new competencies on an ongoing basis, I learned Macros and Pivot tables online by myself and the learning curve is ongoing for me.

100% Job Success
$20.00 /hr
70 hours

Asif Gohar

Asif Gohar

System, Network, Active Directory, Exchange, Backupexec, System Center

Bahrain - Tests: 5 - Portfolio: 5

Knowledgeable and skilled IT professional with encompassing work experience spanning more than 8 years in systems administration with compliance as per industry standards. Possess excellent interpersonal skills to liaise amicably with diverse groups of people, different departments, vendors and agencies. With extensive exposure to different cultures and work environments and has worked effectively with multinational individuals and professionals from all organizational levels. Certifications: MCITP (Server 2008, Exchange 2010, Lync 2010) Expertise: Exchange 2007/2010, Active Directory 2003/2008, SCCM, SCOM, DPM, SCVMM, BackupExec,Enterprise Vault, WSUS, Lync, Server 2003/2008, ADRMS, SQL Server, SAN/NAS.

Groups: Microsoft Certified Professionals

100% Job Success
$20.00 /hr
270 hours

Mohammed A.

Mohammed A.

Network Security and Forensic Expert,Security+,CEH,CHFI,ECSA Certified

Egypt - Tests: 4 - Portfolio: 2

work for more than 12 years Senior instructor , System Administrator , security specialist , Penetration Testing , IT manager.

$16.67 /hr
15 hours

Faisal Mushtaq

Faisal Mushtaq

Technologist & Business Expert

Pakistan - Tests: 11 - Portfolio: 1

Over eighth years of experience in IT Operations, Network Administration and IT Technical Support along with my services for HR, Billing and Operations Departments for department restructuring. During the years, I've developed my skills in professional letter writing along with in my area of specialization i.e, Network Administration. I look forward to do more to explore and prove my multi-dimensional abilities.

$13.00 /hr
3 hours

Bejay A.

Bejay A. Agency Contractor

TOP RATED, Ebay and Amazon Expert, QA Manager, Admin and Data Entry

Philippines - Tests: 6 - Portfolio: 4

I have been an independent contractor on Upwork for the last 6 years. During that time I have had the opportunity to work on a variety of projects, both short and long term. Some of my Upwork experience includes Ebay and Amazon Platform Management, Website Product Upload, Data Entry & Research, Record Keeping, Administrative Support, Ad Posting and Marketing Analysis, Sales, Real Estate and Shipping & Receiving. I am computer and internet savvy, English proficient (written & verbal), able to meet deadlines, detail oriented and I'll admit I am a bit perfectionist. My goal is to provide buyers with accurate, timely and complete work at rates that are both reasonable and affordable. Seeking a career of the above mentioned expertise and chosen fields wherein I can give the best of my knowledge and skills for the company's profit and growth. I am highly professional and pride myself on exceeding customer expectations. You can rely on me to craft my words to your exact requirements. Please check my reputation - I am "top rated" on Upwork and have been awarded full 5* feedback for every job I have undertaken on the platform. This will serve as a proof of being one of the top and high caliber Upwork providers and assurance to my excellent work ethics, drive, initiative, reliability, high standard of professionalism and positive attitude towards work.

Associated with: Joven Sangre GSolutions Agency, Mondex Professionals Agency, Freee Up

100% Job Success
$5.56 /hr
10,477 hours

Salvador Ernesto Aguilar

Salvador Ernesto Aguilar Agency Contractor

Bilingual Technical Support Specialist

Nicaragua - Tests: 10 - Portfolio: 5

I have managed IT infrastructure for VoIP service providers, eCommerce platforms such as, & disrupting service providers such as Knowledable in: AWS (EC2, SES, S3, etc), LAMP, GIT, SVN, Memcached, Linux, Windows Server, MySQL, nginx, php-fpm, Asterisk, SIP protocol, Networking & Firewalls. Has also experience and end user tech support for Windows & Mac Workstations and mobile devices. IT Professional eager for challenges with 10+ years of experience in IT and 5+ years Outsourcing Services. Has worked with global organizations and multicultural teams for companies with headquarters in US, Canada, Philippines, Denmark & Mexico.

Associated with: Top Host LLC

$15.00 /hr
0 hours